Replacing A Failed Power Supply Unit - NEC Express5800/R120b-2 User Manual

Replacing a Failed Power Supply Unit

Replace only a failed power supply unit.
IMPORTANT:
normally.
NOTE:
power supply units in a redundant configuration, the failed power
supply unit can be replaced with the system operating (power-on state).
(Skip step 2.)
1.
Locate the failed power supply unit by the AC POWER LED on the rear of each power
supply unit. (The LED of the failed power supply unit is lit amber or flashing amber.)
2.
Shutdown the system, and press the POWER switch to turn off the power.
3.
Disconnect the power cord from the failed power supply.
4.
Grab the power supply unit handle, and pull the unit towards you while pressing the lever.
5.
Hold the handle of the failed power supply.
6.
If operating the server with a single power supply unit without installing a new one, install
the blank cover you removed in step 2 of installation procedure.
IMPORTANT:
blank cover in the vacant slot.
Observe the following instructions to use the server safely. Failure to follow
these instructions may cause a fire, personal injury, or property damage.
See pages 1-4 to 1-11 for details.
Failure to follow this warnings may cause an electric shock.
Do not remove a power supply unit operating
If one power supply unit fails while the server contains two
To maintain the cooling effect in the server, install the
Upgrading Your Server 9-23
CAUTION
2
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